Shen Zhiyi, 26 years old, is a doctoral candidate in the Department of Chemical Engineering at Tsinghua University. Research direction: organic synthesis and fine chemicals. Three hours before her graduation thesis defense, when she was preparing the last batch of catalytic reagents in the laboratory, a bright light flooded everything.
When she opened her eyes again, she was lying in a dilapidated woodshed, wearing rough linen clothes, and her fingers were red from the cold. A strange Beijing accent came from outside the door - a refugee orphan girl who was taken in by Jiangnan Zhizao Mansion in the 38th year of Kangxi's reign.
There is no system, no cheats, and no portable space. Her only wealth is the knowledge of chemistry that she spent twelve years honing.
She started with a charcoal stove and a clay pot.
In the first week, she prepared the most primitive potassium hydroxide using plant ash, limestone and egg shells.
In the first month, she used wood distillation to create wood acetic acid, prepared the first bottle of home-made iodine, and saved an entire alley affected by the epidemic.
In the third month, she used the saltpeter purification method to make ultra-pure black powder, and a grenade blew up an entire group of bandits.
In the sixth month, her cement kiln produced modern cement ten times stronger than glutinous rice mortar.
